Idling like Stock!

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krat0s
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Idling like Stock!

Post by krat0s » Fri Nov 17, 2006 7:00 am

All this talk of huge power SOHCs and ITBs is great and all, but if you can't daily drive it then it's no use to me!

Now my project has a goal but it's not going to be 190whp or something crazy. But if I want to reach something near that I'm geussing I'm going to need an upgraded intake manifold-or ITBs.

So the question is here, what can I do to make this more of a DD? I know it's stupid to want a modded car to act like stock-but I'll try anyway. I have a COMP 400 cam. If I get ITBs, what kind of control am I going to need to make it idle well? MS or a SAFC? I would assume one or the other. What else could be done to make the car more like stock?
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SPEC #6179
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Post by SPEC #6179 » Fri Nov 17, 2006 7:56 am

I'd say SAFC. The car wont make power high enough to rev that far past 7800 or 7600 with the comp 400 cam.
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98chrysler
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Post by 98chrysler » Fri Nov 17, 2006 8:05 am

The problem with the itb's is the rate of opening. A little throttle = big air. To make it run right you would need squirt. For a daly driver I would do a sheet metal intake with a bigger throttle body.
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UptownSport
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Post by UptownSport » Fri Nov 17, 2006 8:56 am

98chrysler wrote:The problem with the itb's is the rate of opening. A little throttle = big air.
True
Change the rate. Using a stock or near stock cam or lever is
going to give you more throttle than you bargained for.

You can see, kinda, how cannon cured this by making the
throttle arm very long:
Image

Like 98Chrysler said, the TPS will also be getting more than it
bargained for, w/ the large TB's it's noticable at very wide blade
openings.
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krat0s
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Post by krat0s » Fri Nov 17, 2006 9:42 am

So there a ton of air...

What about Dual TBs? As opposed to 4? A middle ground, I guess.

Sick95Sohc used ATX tbs, using the smaller MTX TBs might make a difference too...
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Post by Hex » Fri Nov 17, 2006 9:49 am

... There's nothing wrong with a 200whp daily driver. People do it all of the time.

Btw, you're not going to get a lot out of the ITB's with a comp 400. Its more of a turbo version of the crane 14.
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UptownSport
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Post by UptownSport » Fri Nov 17, 2006 9:58 am

HexenLord wrote:Btw, you're not going to get a lot out of the ITB's with a comp 400. Its more of a turbo version of the crane 14.
Untrue.
I got A LOT outa IR w/ stock cammed 2.2.
If you can do it, do it.
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Hex
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Post by Hex » Fri Nov 17, 2006 10:22 am

UptownSport wrote:
HexenLord wrote:Btw, you're not going to get a lot out of the ITB's with a comp 400. Its more of a turbo version of the crane 14.
Untrue.
I got A LOT outa IR w/ stock cammed 2.2.
If you can do it, do it.
I was aiming more toward the relatively early peak compared to the crane 14 and the fact that ITBs benefit most with high RPMs.

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Post by Kyle » Fri Nov 17, 2006 10:31 am

Here is my throttle cam to try and make the car more driveable at low throttle openings.
Image
Its "only" a 60mm TB, but it works like a charm.
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UptownSport
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Post by UptownSport » Fri Nov 17, 2006 11:05 am

There you go.
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Floyd
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Post by Floyd » Fri Nov 17, 2006 11:24 am

Kyle wrote:Here is my throttle cam to try and make the car more driveable at low throttle openings.
Image
Its "only" a 60mm TB, but it works like a charm.
Mmmmm CF intake. where abouts did that come from?

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BCoN
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Post by BCoN » Fri Nov 17, 2006 11:36 am

He made it himself.
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Post by krat0s » Fri Nov 17, 2006 12:43 pm

SO basically that operates kind of like the magnum intake does? You step on it, and it operates all the way?

And this intake per ITB will not open all the way, unless WOT ?
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I know show cars are always custom body, but he could of left the cute headlights

onthesedays
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Post by onthesedays » Fri Nov 17, 2006 1:08 pm

Correct me if I'm wrong, but...
Performance cams are designed to operate best at WOT, Factory cams are designed to operate best at idle and mid range throttle. That's why most performance cams make your car sound like it's idling like a dragster, but they let your engine run great at higher RPM's. So, a factory cam (or cams) might limit your power, but your engine would run smoother at idle and mid range throttle, which is what you want, correct? So maybe just stick with a factory cam/cams? I'm no expert or anything, so please correct me if I'm wrong.

krat0s
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Post by krat0s » Fri Nov 17, 2006 1:15 pm

Well the entire goal here is to be using perf. cams and have factoryish idle.
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Enkei / Firestone / Iceman / Pacesetter / Dynomax / Mopar
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UptownSport
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Post by UptownSport » Fri Nov 17, 2006 1:18 pm

Not the cam as in camshaft, the cam for the throttle.
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